Mobile medical device with at least one motor-driven wheel

Abstract

The present embodiments provide a mobile medical device with at least one motor-driven wheel. The mobile medical device is movable on the at least one wheel. The motor-driven wheel is arranged on a hub assigned to the motor-driven wheel. The motor-driven wheel is reversibly removable from the hub and is pluggable back onto the hub manually and without aids. The present embodiments provide that the motor-driven wheel may be removed rapidly manually and without additional aids.

The invention claimed is: 
     
       1. A mobile medical device comprising:
 a motor-driven wheel configured to move the mobile medical device; 
 a hub associated with the motor-driven wheel, wherein the motor-driven wheel is configured to be arranged on the hub; 
 a locking device configured to connect the motor-driven wheel to the hub and to release the motor-driven wheel from the hub; 
 grooves in the locking device, wherein the locking device is configured to rotate; 
 corresponding guide elements on a circumference of the hub to engage in the grooves; and 
 a handle on the locking device, wherein the handle is arranged on an end face of the motor-driven wheel facing away from the mobile medical device, 
 wherein the handle is configured to rotate about an axis between a first position and a second position, wherein the handle extends out from the end face of the motor-driven wheel in the first position, and wherein the handle is positioned adjacent to the end face of the motor-driven wheel in the second position, 
 wherein the locking device is configured to be twisted in a first direction by hand using the handle to remove the motor-driven wheel and the locking device from the hub, and 
 wherein the locking device is configured to be twisted in a second, opposite direction by hand using the handle to attach the motor-driven wheel and the locking device to the hub. 
 
     
     
       2. The mobile medical device of  claim 1 , wherein the motor-driven wheel is an omnidirectional wheel. 
     
     
       3. The mobile medical device of  claim 1 , further comprising:
 an axle on which the hub is arranged and rotatably mounted. 
 
     
     
       4. The mobile medical device of  claim 1 , wherein the locking device and the hub are configured such that the handle is configured to be positioned in the second position only when the motor-driven wheel is in a locked position. 
     
     
       5. The mobile medical device of  claim 1 , further comprising:
 a lifting apparatus configured to lift the motor-driven wheel from a floor surface. 
 
     
     
       6. The mobile medical device of  claim 5 , further comprising:
 at least one non-motor-driven wheel, the non-motor-driven wheel configured to support the mobile medical device on the floor surface when the motor-driven wheel has been lifted from the floor surface. 
 
     
     
       7. The mobile medical device of  claim 1 , wherein the hub is configured to be truncated cone-shaped, and
 wherein the motor-driven wheel has a corresponding truncated cone-shaped depression. 
 
     
     
       8. The mobile medical device of  claim 1 , further comprising:
 at least one twist-proofing element arranged on a circumference of the hub, the twist-proofing element configured to hold the motor-driven wheel in a twist-proof manner on the hub. 
 
     
     
       9. The mobile medical device of  claim 2 , further comprising:
 at least four omnidirectional wheels configured as Mecanum wheels. 
 
     
     
       10. A mobile medical device comprising:
 a motor-driven wheel configured to move the mobile medical device; 
 a hub associated with the motor-driven wheel, wherein the motor-driven wheel is configured to be arranged on the hub; 
 an axle on which the hub is arranged and rotatably mounted; 
 a locking device configured to connect the motor-driven wheel firmly to the hub and to release the motor-driven wheel from the hub; 
 a handle on the locking device, wherein the handle is arranged on an end face of the motor-driven wheel facing away from the mobile medical device; 
 grooves on a circumference of the hub; and 
 corresponding guide elements of the locking device configured to engage in the grooves, 
 wherein the handle is configured to rotate about an axis between a first position and a second position, wherein the handle extends out from the end face of the motor-driven wheel in the first position, and wherein the handle is positioned adjacent to the end face of the motor-driven wheel in the second position, and 
 wherein the locking device is configured to rotate to: (1) disengage the guide elements from the grooves to remove the motor-driven wheel from the hub by hand using the handle, or (2) engage the guide elements in the grooves to attach the motor-driven wheel to the hub by hand using the handle. 
 
     
     
       11. The mobile medical device of  claim 10 , wherein the motor-driven wheel is an omnidirectional wheel. 
     
     
       12. The mobile medical device of  claim 10 , wherein the locking device and the hub are configured such that the handle is configured to be positioned in the second position only when the motor-driven wheel is in a locked position. 
     
     
       13. The mobile medical device of  claim 10 , further comprising:
 a lifting apparatus configured to lift the motor-driven wheel from a floor surface. 
 
     
     
       14. The mobile medical device of  claim 13 , further comprising:
 at least one non-motor-driven wheel, the non-motor-driven wheel configured to support the mobile medical device on the floor surface when the motor-driven wheel has been lifted from the floor surface. 
 
     
     
       15. The mobile medical device of  claim 10 , further comprising:
 at least one twist-proofing element arranged on a circumference of the hub, the twist-proofing element configured to hold the motor-driven wheel in a twist-proof manner on the hub. 
 
     
     
       16. A mobile medical device comprising:
 a motor-driven wheel configured to move the mobile medical device; 
 a hub associated with the motor-driven wheel, wherein the motor-driven wheel is configured to be arranged on the hub; 
 a locking device configured to connect the motor-driven wheel firmly to the hub and to release the motor-driven wheel from the hub; 
 a handle on the locking device, wherein the handle is arranged on an end face of the motor-driven wheel facing away from the mobile medical device; 
 an axle on which the hub is arranged and rotatably mounted; and 
 an electric motor arranged in the axle, the electric motor configured to drive the motor-driven wheel, 
 wherein the handle is configured to rotate about an axis between a first position and a second position, wherein the handle extends out from the end face of the motor-driven wheel in the first position, and wherein the handle is positioned adjacent to the end face of the motor-driven wheel in the second position, 
 wherein the motor-driven wheel is configured to be reversibly removed from the hub and placed on the hub by hand using the handle and without aids. 
 
     
     
       17. The mobile medical device of  claim 16 , further comprising:
 a lifting apparatus configured to lift the motor-driven wheel from a floor surface. 
 
     
     
       18. The mobile medical device of  claim 16 , wherein the locking device and the hub are configured such that the handle is configured to be positioned in the second position only when the motor-driven wheel is in a locked position. 
     
     
       19. The mobile medical device of  claim 16 , wherein the motor-driven wheel is an omnidirectional wheel. 
     
     
       20. The mobile medical device of  claim 17 , further comprising:
 at least one non-motor-driven wheel, the non-motor-driven wheel configured to support the mobile medical device on the floor surface when the motor-driven wheel has been lifted from the floor surface.